Carbon roof vent designed in two parts to help reduce water ingress.
Rally roof scoop functional.
Deep 6 rally team merch and also random car sticker.
Just a quick video on how i installed my roof scoop and vent on my 2004 subaru sti thanks for watching.
Wide mouth helps to feed air to your roof vent but a small air escape in the back of the scoop reduces noise and lift when roof vent is closed.
The scoop on the roof was absolutely functional it even had a little crank on the inside to turn the air flow on and off.
I have read the answers below and they only tell half the story.
If this was the real reason then every track race car.
But if you re just after that snappy rally car look install the scoop by itself without cutting a hole in the roof.
I asked them where they got it and they said it is a bona fide race car part made for a european rally race car.
Theres a site geared mostly to sti s and other subies that happens to sell.
Opening in front is about 13 wide.
It was also real carbon fiber.
Functional rally roof scoop.
With time roof scoop design improved turning into a flat thin opening.
Scoop measures approx 19 x 17 and 3 5 tall.
Joined sep 7 2005 8 950 posts.
They got it over seas at a rally race supplier.
C sainz l moya toyota celica t165 rally acropolis 1990 1st.
Aka the wizard.
Internal directional air vents two stage foam filter system to reduce dust.
Yes the roof scoop will give some air flow in the cabin however there are far more efficient and aerodynamic ways of doing so.
I learned that the roof scoop on rally cars is used to help cool the cars.